Data compliance
LogicGrid: Sudoku & Murdoku · Data safety · May 25, 2026
This page summarizes what data LogicGrid: Sudoku & Murdoku (com.logicgrid.logic_grid_fe) collects, for what purposes, and how we comply with Google Play policies, including the Data safety section. It complements our privacy policy and is published by Desarrollador de LogicGrid.
Data collection occurs primarily in the Android application. This website does not collect its own analytics data.
Summary of collected data
| Data type | Collected? | Required? | Purpose | Shared? | Deletion |
|---|---|---|---|---|---|
| Identifiers (Firebase user ID, device/installation ID) | Yes | Partial (automatic anonymous session; Google account optional) | Authentication, analytics, ads, stability | Yes, with Google (Firebase, AdMob) | Profile → Delete account; see account deletion |
| Personal information (email, name, profile photo) | Only if you sign in with Google | No (optional) | Authentication and basic account personalization | Yes, with Google (Firebase Auth) | Profile → Delete account |
| App activity (screens, sessions, interactions) | Yes | Yes (normal app use) | Usage statistics and product improvement (Analytics) | Yes, with Google (Firebase Analytics) | Aggregated/anonymous data after account deletion; request at logicgrid222@gmail.com |
| Crash logs and diagnostics | Yes | Yes (automatic on errors) | Fix errors and improve stability (Crashlytics, Performance) | Yes, with Google | Retention per Google policies (~90 days); contact logicgrid222@gmail.com |
| Advertising data (advertising ID, ad interactions) | Yes | Yes (app displays AdMob ads) | Display and measure ads | Yes, with Google and AdMob partners | Device ad settings; see privacy policy |
| Game progress and preferences | Yes, on device | Yes (game functionality) | Save progress and settings locally | Not sent to our servers | Profile → Delete account or clear app data on Android |
1. Data we do NOT collect
- Precise or approximate location.
- Contacts, SMS, call logs, or calendar.
- Health, financial, or biometric data.
- Personal message content.
- Cloud progress sync (Firestore backup not used in the current version).
2. Processing purposes
- App functionality: authentication, local progress, puzzles.
- Analytics: measure usage and improve features (Firebase Analytics).
- Stability: detect and fix errors (Crashlytics, Performance).
- Advertising: display ads (Google AdMob).
- Security: prevent API abuse (Firebase App Check).
4. Data security
- Encrypted communication (HTTPS/TLS) with cloud services.
- Firebase App Check to limit abuse.
- Restricted access to admin consoles.
- Local progress stored only on the user's device.
6. Google Play declaration (Data safety)
When completing the Data safety form in Play Console, declare consistently with this page:
- The app collects data (not «does not collect data»).
- Types: identifiers, app activity, diagnostics, advertising data; personal info only if user signs in with Google.
- Purposes: analytics, advertising, app functionality, fraud prevention/security, crash reporting.
- Data is shared with third parties (Google / AdMob).
- Data is encrypted in transit.
- Users can request account deletion (URL: {{siteUrl}}/eliminar-cuenta).
- The app contains ads.
3. Sharing with third parties
We share data only with Google LLC and its services (Firebase, Analytics, AdMob, Crashlytics) as processors. We do not sell personal data. Ads may involve Google advertising partners per AdMob configuration.
5. User rights and deletion
You can delete your account and local data from Profile → Delete account. See account deletion. For other requests (access, rectification, objection): logicgrid222@gmail.com. More detail in our privacy policy.
7. Contact
Controller: Desarrollador de LogicGrid · Package: com.logicgrid.logic_grid_fe · Contact: logicgrid222@gmail.com